Impedance Tomography is a frame of data that monitors the regional distribution of air in the lungs. Its benefits include early diagnosis of various diseases. This imaging technique can be used to identify the location and type of lesion. It has several limitations, however. The spatial resolution is poor and measurement information is small. Traditional imaging methods may also be used to confirm the location of lesion areas.
Impedance Tomography is a frame of data
Electrical Impedance Tomography, or EIT, is a noninvasive diagnostic procedure that detects abnormal tissue using immittance changes in the body. It is closely related to CT and is used to detect cancer and precancerous lesions. A wide range of equipment is available, including systems manufactured by Impedance Medical Technologies. Mirabel Medical Systems, for instance, develops a noninvasive solution for breast cancer detection with its T-Scan 2000ED system. Zilico Limited, a company dedicated to delivering diagnostic solutions, distributes a model called ZedScan I which aids in the detection of cervical intraepithelial neoplasia. It received EC certification in 2013.
It monitors regional distribution of air in the lungs
Electrical Impedance Tomography (EIT) monitors the regional distribution of air in the lungs by measuring the electrical impedance between tissue and air filled spaces. This technique has been validated in animal and human studies. It involves placing a series of electrodes circumferentially around the thorax. A small electrical current is passed between the electrodes, which then determines the impedance of the tissue. A computer records the information obtained.
It provides information about regional distribution of air in the lungs
The main goal of mechanical ventilation is to minimize the lung damage that may result from the ventilator. To this end, physicians have been trying to optimize alveolar recruitment, maintain an open lung, and limit pulmonary overdistension. Historically, physicians have used global measures of oxygenation and respiratory system mechanics to adjust the mechanical ventilation rate. However, these global measures can average opposite pathological phenomena across different lung units. Therefore, it is important to monitor regional effects of mechanical ventilation using regional functional lung monitoring.
It can be used for early diagnosis of diseases
Electrical Impedance Tomography is a portable, safe imaging method that uses electrical current to measure differences in electrical conductivity across different sections of the body. The technique involves placing electrodes on the surface of the body and measuring voltages induced on these electrodes. The differences in electrical conductivity are then displayed as shades of gray in an image. The imaging technique is used to detect and diagnose diseases such as stroke.
It improves lung compliance
Electrical Impedance Tomography (EIT) has been shown to improve lung compliance in children with acute respiratory distress syndrome (ARDS). The study used EIT to guide positive end-expiratory pressure titration. A protocol was developed that includes assessing regional compliance and reducing positive end-expiratory pressure (PEEP) in steps of two mbar. The patients were monitored every hour to ensure that the procedure is improving lung compliance.
It can be used in monitoring blood perfusion
Electrical Impedance Tomography (EIT) is a noninvasive technique that uses low-frequency electrical current to determine differences in the electrical conductivity of different sections of the body. It works by placing electrodes on the surface of the body, causing an electrical current to flow through them. This induced voltage is measured and an inverse calculation is used to determine the changes in the conductivity in different sections of the body. Images are then generated that show these differences in conductivity.
